High-Resolution Geomorphic Map of the Northern Lord Howe Rise Submerged Plateau

Geoscience Australia Data produced a high-resolution geomorphic map of a submerged plateau on the northern Lord Howe Rise in the Tasman Sea. The map covers approximately 25,500 km² and details features like ridges, valleys, volcanic peaks, and an extensive network of polygonal furrows. It was last updated on 2026-05-14.

Use Cases

• Analyze seabed geomorphology based on mapped units like ridges, valleys, and plateaus.
• Study sediment transport and deposition based on features like polygonal furrows and aprons.
• Investigate volcanic and tectonic influences based on the distribution of volcanic peaks and acoustic basement highs.
• Model dewatering processes based on the presence of polygonal furrows in carbonate ooze.

Strengths

• Covers a large area of approximately 25,500 km².
• Provides high-resolution mapping of seabed geomorphology.
• Extends a hierarchical mapping system previously used for the Australian margin.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Freshness should be verified as the last update date is in the future (2026-05-14).

Provenance

Source

Geoscience Australia Data

Collection Method

Created using high-resolution multibeam bathymetry data.

Freshness

Last updated 2026-05-14 05:10:48.652705

Geography

Northern Lord Howe Rise plateau, Tasman Sea, east Australian margin.